// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "src/builtins/builtins-utils-gen.h"
#include "src/builtins/builtins.h"
#include "src/code-stub-assembler.h"
#include "src/frame-constants.h"
#include "src/macro-assembler.h"

#include "src/objects-inl.h" // weolar

namespace v8 {
namespace internal {

    TF_BUILTIN(FastConsoleAssert, CodeStubAssembler)
    {
        Label runtime(this);
        Label out(this);

        // TODO(ishell): use constants from Descriptor once the JSFunction linkage
        // arguments are reordered.
        Node* argc = Parameter(Descriptor::kJSActualArgumentsCount);
        Node* context = Parameter(Descriptor::kContext);
        Node* new_target = Parameter(Descriptor::kJSNewTarget);
        GotoIf(Word32Equal(argc, Int32Constant(0)), &runtime);

        CodeStubArguments args(this, ChangeInt32ToIntPtr(argc));
        BranchIfToBooleanIsTrue(args.AtIndex(0), &out, &runtime);
        BIND(&out);
        args.PopAndReturn(UndefinedConstant());

        BIND(&runtime);
        {
            // We are not using Parameter(Descriptor::kJSTarget) and loading the value
            // from the current frame here in order to reduce register pressure on the
            // fast path.
            TNode<JSFunction> target = LoadTargetFromFrame();
            TailCallBuiltin(Builtins::kConsoleAssert, context, target, new_target,
                argc);
        }
    }

} // namespace internal
} // namespace v8
